Circular-knitting machine.



No. Migl. PATENTED SEPT. 8, 1908.

H. A. HOUSEMAN.

GRCULAR KNITTING MACHINE.

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CIRCULAR KNITTING MACHINE.

APPLICATION FILED MAY 22, 1907.

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HARRY A. HOUSEMAX. O1" PHILADELPHIA,4 PENNSYLVANIA, ASSIGNOR TO STANDARD "MACHINE COMPANY, OF PHILADELPHIA, PBNXSYLYANL-i, A CORPORATION OF PENN- SYLVAXIA.

CIRCULAR-KNI TTIN G LIACHINE Patented sept. 8, 190s.

Appiieaami ined mi' 22, isor. seriai Naavaozz.

....Beit known that I, H iiini A. Ilocsiiimx, a citizen of the l'nited States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania.. have invented a new and useful Improvement in (ircular-linitting. Machines, of which the followingr is a full, clear, and exact description, reference. beine' had .to the accompanyinhr drawings, which forni a part of this specification.

, In the manufacture of stockings or half hose upon circularknittingr machines after the com iletion of the stocking or half hose, the stitches at the end Aof the toc-are. transferred to a looper in order to close up the opening. -Itis required, to produce. proper work, that the fabric shallbe put Vupon the looper in a straight line.'v With the course at the end of the toe of ihesanie mesh or tight# ness as the contiguous courses, it is quite difficult for the operator to putthe stitches upon the looper in a straight line.

It is the primary object of my invention to provide mechanism which causes the production of a course at thc end of the. toel looser than the contiguous courses so as to forni a ready means ot placing such stitches` extends one quarter around the cani cylinupoii the looper, and t ius place the fabric upon the looper in a straight line of stitches. The invention is however applicable to forni a. course looser than the contiguous courses at any point in thc fabric.

l will first describe the embodiment of my invention illustrated Ain the accompanying` drawings and then point out the invention l gearw elevates the lever s, elevating the in the claims.

In the drawings: Figure 1 is a side view iai'tly in section of a portion of a circular 'nitting machine embodying my invention. Fig. 2 is afront view of saiiie, partly broken away. Fig. 3 is a horizontal section showingrr how the pawl r is driven from the main driving gear. Fig. 4 isa side view of' saine, taken on line 4-1 Fig. 3.

a is the frame of a circular knitting machine, l) the needle cylinder. The needlecylinder is supported upon the rod c. The rod c is supported by the rod d which is threaded and passes through a threaded orifice] in the lever (l. Upon the rod d. below the lever y is the the needle cylinder and vary theA tightness of the courses to fashion the stocking. All of the before described apparatus is described, illustrated and claimed in Letters Patent of the l'nited States, numbered 774,473, issued vto me November Sth, 1904., to which refer-` ence may be had for further details ofthe construction just described.

Pivoted to the lever f/ is a lloatiiiglevern, one end of which rests upon the pattern cha-in o on the pattern chain wheel p. This wheel p is operated by the ratchet wheel g, which is driven-by the pawl 1*. The other end of floating lever 1i rests upon the levers, pivoted at t to a hanger i1 from the frame of the inachine. The other end of the lever s has the operating face e.-

-zr is the main driving gear ot' the machine and is connected b v intermediate mechanisin with the cani cylinder., vThe connecting mechanism is as shown and described in l'nited States Letters Patent No. 774,473, issued to nie November Sth, 1904. The arrangement is such that the gear revolves once for four revolutions of the cani cylinder and thus revolves once for four courses of the fabric.. llpon this gear is the cani x, which der or the distance corresponding to one course of the fabric. Upon the pattern chain, at predetermined points, where it is desired to knit the loose course, is placed the .lug y. When, in the movement of the pattern chain, this lug strikes the lever n it forms a fulcruin for said lever and the cani x on the.

lever 1i. and lifting the needle 'cylinder and loosening the mesh. As the extent of this cani is equal, only to one course, the needle cylinder is held up only for one course. The pawl r is reciproca-ted by means of a erank'z connected to the gear w. This crank operates the segmental gear l. On the shaft 3 of the 'segmental gear 1 is a lever 1t). A connecting rod 4 is connected at onel end to lever 10 and atv the other end t0 lever 5, swiveled on shaft 6. To the other end of the lever 5 is connected the. connecting .rod 7 which is adjustably connected at the other end to lever S. To the other end of lever 8 is pivoted the pawl 1'. Thus the pawl r drives for two courses and retreats for tivo courses. This makes certain that the lug 'y will act; upon lever 1i as a ulcruni for a time sutlicient to enable the cani :c to act with certainty, to

chine isv knitting the last course of the toe of the stocking.

Havin now fully .describedmy invention,

what I c aim and desire to protect by Letters Patent is:

1. In a circular knitting machine, the combination with a vertically movable needle cylinder, of a supporting lever for said c linder, a second lever normally floating Wit respect to the rst lever, a pattern device for operatively connecting said levers and mea'ns to operate upon said normally -i'loati'ng lever when in thelast mentioned condition to lift said last mentioned lever.

2. In a circular knittin machine, the com; bination width. a vertical y movable needle cylinder, of a'supp'orting lever for said cvlinder, a second lever normallyl iloati'ne with respect to the rst lever, a attern djevice for operatively connectin sai levers and means',

operative' during the 'tting of one course, to operate u on said normally'oating lever when in the ast mentioned conditionto lift said last mentioned lever. l

3. Ina circular knitting Inachine,the combination with `a vertically movable needle cylinder, of a lifting device and means to render said device-active at. a predetermined pointand a cam, operative during knitting of one course, adapted, when the lifting device is rendered active, to lift said device. 4. In a circular lknitting machine, the combination with a vertically movable needle cylinder, -of a lifting lever normally looselyv -connected With said needle cylinder, a pattern device adapted to make a fixed connection between said lifting lever andneedle cylinder, and means to lift said lever when said lever is soconnected. v

-5. In a circular knitting machine, the combination With a vertically movable needle.

cylinder, of a lifting lever normally inopera tive, a pattern device adapted to make an operative connection between said lifting lever and needle cylider, and means to Ilift said lever When said lever isoperatively donnected with the needle cylinder.

6. In a circular knitting machine, the colmbination Wit-h a vertically movable needle cylinder, of a lifting lever normally inactive,

a pattern device for rendering said lever ac tive and a cam adapted to lift said lever and .the needle cylinder when said lever is renderedactive, the .extent of said'cam being such as to operate during one course, Where- .by said lever is released from the cam and the HARRY A. HOUSEMAN.

Witnesses:

.AL M. HAMILTON,

A. M. U12-IAN. 

